Publications
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Ecological and evolutionary conditions for fruit abortion to regulate pollinating seed-eaters and increase plant production Ecological and evolutionary conditions for fruit abortion to regulate pollinating seed-eaters and increase plant production
Coevolved mutualisms, such as those between senita cacti, yuccas, and their respective obligate pollinators, benefit both species involved in the interaction. However, in these pollination mutualisms the pollinator's larvae impose a cost on plants through consumption of developing seeds and fruit. The effects of pollinators on benefits and costs are expected to vary with the abundance of
Authors
J. Nathaniel Holland, Donald L. DeAngelis
Translocations of amphibians: Proven management method or experimental technique Translocations of amphibians: Proven management method or experimental technique
In an otherwise excellent review of metapopulation dynamics in amphibians, Marsh and Trenham (2001) make the following provocative statements (emphasis added): If isolation effects occur primarily in highly disturbed habitats, species translocations may be necessary to promote local and regional population persistence. Because most amphibians lack parental care, they areprime candidates...
Authors
Richard A. Seigel, C. Kenneth Dodd
Exploring the effect of drought extent and interval on the Florida snail kite: Interplay between spatial and temporal scales Exploring the effect of drought extent and interval on the Florida snail kite: Interplay between spatial and temporal scales
The paper aims at exploring the viability of the Florida snail kite population under various drought regimes in its wetland habitat. The population dynamics of snail kites are strongly linked with the hydrology of the system due to the dependence of this bird species on one exclusive prey species, the apple snail, which is negatively affected by a drying out of habitat. Based on...
Authors
Wolf M. Mooij, Robert E. Bennetts, Wiley M. Kitchens, Donald L. DeAngelis
Multibeam mapping of the Pinnacles region, Gulf of Mexico Multibeam mapping of the Pinnacles region, Gulf of Mexico
Recent USGS mapping shows an extensive deep (~100 m) reef tract occurs on the Mississippi-Alabama outer continental shelf (Figure 1). The tract, known as "The Pinnacles", is apparently part of a sequence of drowned reef complexes along the "40-fathom" shelf edge of the northern Gulf of Mexico (Ludwick and Walton, 1957). It is critical to determine the accurate geomorphology of these deep...
Authors
James V. Gardner, Peter Dartnell, Kenneth J. Sulak
Population dynamics and mutualism: Functional responses of benefits and costs Population dynamics and mutualism: Functional responses of benefits and costs
We develop an approach for studying population dynamics resulting from mutualism by employing functional responses based on density‐dependent benefits and costs. These functional responses express how the population growth rate of a mutualist is modified by the density of its partner. We present several possible dependencies of gross benefits and costs, and hence net effects, to a...
Authors
J. Nathaniel Holland, Donald L. DeAngelis, Judith L. Bronstein
Structural instability, multiple stable states, and hysteresis in periphyton driven by phosphorus enrichment in the Everglades Structural instability, multiple stable states, and hysteresis in periphyton driven by phosphorus enrichment in the Everglades
Periphyton is a key component of the Everglades ecosystems. It is a major primary producer, providing food and habitat for a variety of organisms, contributing material to the surface soil, and regulating water chemistry. Periphyton is sensitive to the phosphorus (P) supply and P enrichment has caused dramatic changes in the native Everglades periphyton assemblages. Periphyton also...
Authors
Quan Dong, Paul V. McCormick, Fred H. Sklar, Donald L. DeAngelis
Seasonal reproductive cycles for Florida largemouth bass Seasonal reproductive cycles for Florida largemouth bass
No abstract available.
Authors
Timothy S. Gross, Maria S. Sepulveda, Carla M. Wieser, Jon J. Wiebe, Trenton R. Schoeb, Nancy D. Denslow, William E. Johnson
Test of salt marsh as a site of production and export of fish biomass with implications for impoundment management and restoration Test of salt marsh as a site of production and export of fish biomass with implications for impoundment management and restoration
Salt marshes are among the most productive ecosystems in the world, and although they are thought to enhance the productivity of open estuarine waters, the mechanism by which energy transfer occurs has been debated for decades. One possible mechanism is the transfer of saltmarsh production to estuarine waters by vagile fishes and invertebrates. Saltmarsh impoundments in the Indian River...
Authors
Philip W. Stevens
Fouth World Congress of Herpetology, 3-9 December 2001, Bentota, Sri Lanka Fouth World Congress of Herpetology, 3-9 December 2001, Bentota, Sri Lanka
No abstract available.
Authors
C. Kenneth Dodd, B. Bartholomew
Natural history notes: Elaphe obsoleta obsoleta (Black rat snake). Predation Natural history notes: Elaphe obsoleta obsoleta (Black rat snake). Predation
No abstract available.
Authors
Kimberly G. Smith, J. L. Waldron, William J. Barichivich
Remarks on the current status of the non-marine herpetofauna of Egmont Key, Florida Remarks on the current status of the non-marine herpetofauna of Egmont Key, Florida
No abstract available.
Authors
C. Kenneth Dodd, Marian L. Griffey